#pragma once
#include<iostream>
using namespace std;
struct treeNode
{
public:
	int add(int a, int b)
	{
		return a + b;
	}
	treeNode()
	{
		_number = 0;
		_size = 4;
	}
	~treeNode()
	{
		_number = 0;
		_size = 0;
	}
	int treesize(treeNode& a)
	{
		return a._size;
	}
	int treenumber(treeNode& a)
	{
		return a._number;
	}
private:
	int _number;
	int _size;
};